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C++ crypto_mod_put函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中crypto_mod_put函数的典型用法代码示例。如果您正苦于以下问题：C++ crypto_mod_put函数的具体用法？C++ crypto_mod_put怎么用？C++ crypto_mod_put使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了crypto_mod_put函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: crypto_alg_mod_lookup

struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask)
{
	struct crypto_alg *alg;

	alg = crypto_alg_mod_lookup(name, type, mask);
	if (IS_ERR(alg))
		return alg;

	if (alg->cra_type == &crypto_aead_type)
		return alg;

	if (!alg->cra_aead.ivsize)
		return alg;

	crypto_mod_put(alg);
	alg = crypto_alg_mod_lookup(name, type | CRYPTO_ALG_TESTED,
				    mask & ~CRYPTO_ALG_TESTED);
	if (IS_ERR(alg))
		return alg;

	if (alg->cra_type == &crypto_aead_type) {
		if ((alg->cra_flags ^ type ^ ~mask) & CRYPTO_ALG_TESTED) {
			crypto_mod_put(alg);
			alg = ERR_PTR(-ENOENT);
		}
		return alg;
	}

	BUG_ON(!alg->cra_aead.ivsize);

	return ERR_PTR(crypto_nivaead_default(alg, type, mask));
}
开发者ID:robcore，项目名称:Hulk-Kernel-V2，代码行数:32，代码来源:aead.c


示例2: crypto_check_attr_type

static struct crypto_instance *crypto_rfc3686_alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_BLKCIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	err = PTR_ERR(alg);
	if (IS_ERR(alg))
		return ERR_PTR(err);

	/* We only support 16-byte blocks. */
	err = -EINVAL;
	if (alg->cra_blkcipher.ivsize != CTR_RFC3686_BLOCK_SIZE)
		goto out_put_alg;

	/* Not a stream cipher? */
	if (alg->cra_blocksize != 1)
		goto out_put_alg;

	inst = crypto_alloc_instance("rfc3686", alg);
	if (IS_ERR(inst))
		goto out;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = 1;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_blkcipher_type;

	inst->alg.cra_blkcipher.ivsize = CTR_RFC3686_IV_SIZE;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize
					      + CTR_RFC3686_NONCE_SIZE;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize
					      + CTR_RFC3686_NONCE_SIZE;

	inst->alg.cra_blkcipher.geniv = "seqiv";

	inst->alg.cra_ctxsize = sizeof(struct crypto_rfc3686_ctx);

	inst->alg.cra_init = crypto_rfc3686_init_tfm;
	inst->alg.cra_exit = crypto_rfc3686_exit_tfm;

	inst->alg.cra_blkcipher.setkey = crypto_rfc3686_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_rfc3686_crypt;
	inst->alg.cra_blkcipher.decrypt = crypto_rfc3686_crypt;

out:
	crypto_mod_put(alg);
	return inst;

out_put_alg:
	inst = ERR_PTR(err);
	goto out;
}
开发者ID:jkrevoir，项目名称:rtl819x，代码行数:60，代码来源:ctr.c


示例3: crypto_ofb_create

static int crypto_ofb_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct skcipher_instance *inst;
	struct crypto_alg *alg;
	int err;

	inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
	if (IS_ERR(inst))
		return PTR_ERR(inst);

	/* OFB mode is a stream cipher. */
	inst->alg.base.cra_blocksize = 1;

	/*
	 * To simplify the implementation, configure the skcipher walk to only
	 * give a partial block at the very end, never earlier.
	 */
	inst->alg.chunksize = alg->cra_blocksize;

	inst->alg.encrypt = crypto_ofb_crypt;
	inst->alg.decrypt = crypto_ofb_crypt;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		inst->free(inst);

	crypto_mod_put(alg);
	return err;
}
开发者ID:avagin，项目名称:linux，代码行数:29，代码来源:ofb.c


示例4: crypto_check_attr_type

static struct crypto_instance *crypto_ctr_alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_CIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(alg))
		return ERR_CAST(alg);

	/* Block size must be >= 4 bytes. */
	err = -EINVAL;
	if (alg->cra_blocksize < 4)
		goto out_put_alg;

	/* If this is false we'd fail the alignment of crypto_inc. */
	if (alg->cra_blocksize % 4)
		goto out_put_alg;

	inst = crypto_alloc_instance("ctr", alg);
	if (IS_ERR(inst))
		goto out;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = 1;
	inst->alg.cra_alignmask = alg->cra_alignmask | (__alignof__(u32) - 1);
	inst->alg.cra_type = &crypto_blkcipher_type;

	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.cra_ctxsize = sizeof(struct crypto_ctr_ctx);

	inst->alg.cra_init = crypto_ctr_init_tfm;
	inst->alg.cra_exit = crypto_ctr_exit_tfm;

	inst->alg.cra_blkcipher.setkey = crypto_ctr_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_ctr_crypt;
	inst->alg.cra_blkcipher.decrypt = crypto_ctr_crypt;

	inst->alg.cra_blkcipher.geniv = "chainiv";

out:
	crypto_mod_put(alg);
	return inst;

out_put_alg:
	inst = ERR_PTR(err);
	goto out;
}
开发者ID:03199618，项目名称:linux，代码行数:57，代码来源:ctr.c


示例5: crypto_check_attr_type

static struct crypto_instance *crypto_cts_alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_BLKCIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	err = PTR_ERR(alg);
	if (IS_ERR(alg))
		return ERR_PTR(err);

	inst = ERR_PTR(-EINVAL);
	if (!is_power_of_2(alg->cra_blocksize))
		goto out_put_alg;

	inst = crypto_alloc_instance("cts", alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_blkcipher_type;

	/* We access the data as u32s when xoring. */
	inst->alg.cra_alignmask |= __alignof__(u32) - 1;

	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;

	inst->alg.cra_blkcipher.geniv = "seqiv";

	inst->alg.cra_ctxsize = sizeof(struct crypto_cts_ctx);

	inst->alg.cra_init = crypto_cts_init_tfm;
	inst->alg.cra_exit = crypto_cts_exit_tfm;

	inst->alg.cra_blkcipher.setkey = crypto_cts_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_cts_encrypt;
	inst->alg.cra_blkcipher.decrypt = crypto_cts_decrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}
开发者ID:JonnyH，项目名称:pandora-kernel，代码行数:52，代码来源:cts.c


示例6: crypto_larval_error

void crypto_larval_error(const char *name, u32 type, u32 mask)
{
	struct crypto_alg *alg;

	alg = crypto_alg_lookup(name, type, mask);

	if (alg) {
		if (crypto_is_larval(alg)) {
			struct crypto_larval *larval = (void *)alg;
			complete_all(&larval->completion);
		}
		crypto_mod_put(alg);
	}
}
开发者ID:MH2033，项目名称:VIPER_KERNEL_LP_D802，代码行数:14，代码来源:algapi.c


示例7: crypto_grab_skcipher

int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
			 u32 type, u32 mask)
{
	struct crypto_alg *alg;
	int err;

	type = crypto_skcipher_type(type);
	mask = crypto_skcipher_mask(mask);

	alg = crypto_lookup_skcipher(name, type, mask);
	if (IS_ERR(alg))
		return PTR_ERR(alg);

	err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
	crypto_mod_put(alg);
	return err;
}
开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:17，代码来源:ablkcipher.c


示例8: crypto_check_attr_type

static struct crypto_instance *crypto_pcbc_alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(alg))
		return ERR_CAST(alg);

	inst = crypto_alloc_instance("pcbc", alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_blkcipher_type;

	
	inst->alg.cra_alignmask |= __alignof__(u32) - 1;

	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.cra_ctxsize = sizeof(struct crypto_pcbc_ctx);

	inst->alg.cra_init = crypto_pcbc_init_tfm;
	inst->alg.cra_exit = crypto_pcbc_exit_tfm;

	inst->alg.cra_blkcipher.setkey = crypto_pcbc_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_pcbc_encrypt;
	inst->alg.cra_blkcipher.decrypt = crypto_pcbc_decrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:45，代码来源:pcbc.c


示例9: crypto_grab_nivaead

static int crypto_grab_nivaead(struct crypto_aead_spawn *spawn,
			       const char *name, u32 type, u32 mask)
{
	struct crypto_alg *alg;
	int err;

	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	type |= CRYPTO_ALG_TYPE_AEAD;
	mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV;

	alg = crypto_alg_mod_lookup(name, type, mask);
	if (IS_ERR(alg))
		return PTR_ERR(alg);

	err = crypto_init_spawn(&spawn->base, alg, spawn->base.inst, mask);
	crypto_mod_put(alg);
	return err;
}
开发者ID:robcore，项目名称:Hulk-Kernel-V2，代码行数:18，代码来源:aead.c


示例10: crypto_check_attr_type

static struct crypto_instance *crypto_gecb_alloc(struct rtattr **tb)
{
    struct crypto_instance *inst;
    struct crypto_alg *alg;
    int err;

    err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
    if (err)
        return ERR_PTR(err);

    alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
                              CRYPTO_ALG_TYPE_MASK);
    if (IS_ERR(alg))
        return ERR_CAST(alg);

    inst = crypto_alloc_instance("gaes_ecb", alg);
    if (IS_ERR(inst)) {
        printk("[gecb] Error: cannot alloc crypto instance\n");
        goto out_put_alg;
    }

    inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
    inst->alg.cra_priority = alg->cra_priority;
    inst->alg.cra_blocksize = alg->cra_blocksize;
    inst->alg.cra_alignmask = alg->cra_alignmask;
    inst->alg.cra_type = &crypto_blkcipher_type;

    inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
    inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;

    inst->alg.cra_ctxsize = sizeof(struct crypto_gecb_ctx);

    inst->alg.cra_init = crypto_gecb_init_tfm;
    inst->alg.cra_exit = crypto_gecb_exit_tfm;

    inst->alg.cra_blkcipher.setkey = crypto_gecb_setkey;
    inst->alg.cra_blkcipher.encrypt = crypto_gecb_encrypt;
    inst->alg.cra_blkcipher.decrypt = crypto_gecb_decrypt;

out_put_alg:
    crypto_mod_put(alg);
    return inst;
}
开发者ID:eeide，项目名称:kgpu，代码行数:43，代码来源:gaes_ecb.c


示例11: crypto_ctr_create

static int crypto_ctr_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct skcipher_instance *inst;
	struct crypto_alg *alg;
	int err;

	inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
	if (IS_ERR(inst))
		return PTR_ERR(inst);

	/* Block size must be >= 4 bytes. */
	err = -EINVAL;
	if (alg->cra_blocksize < 4)
		goto out_free_inst;

	/* If this is false we'd fail the alignment of crypto_inc. */
	if (alg->cra_blocksize % 4)
		goto out_free_inst;

	/* CTR mode is a stream cipher. */
	inst->alg.base.cra_blocksize = 1;

	/*
	 * To simplify the implementation, configure the skcipher walk to only
	 * give a partial block at the very end, never earlier.
	 */
	inst->alg.chunksize = alg->cra_blocksize;

	inst->alg.encrypt = crypto_ctr_crypt;
	inst->alg.decrypt = crypto_ctr_crypt;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		goto out_free_inst;
	goto out_put_alg;

out_free_inst:
	inst->free(inst);
out_put_alg:
	crypto_mod_put(alg);
	return err;
}
开发者ID:Anjali05，项目名称:linux，代码行数:42，代码来源:ctr.c


示例12: crypto_get_attr_alg

static struct crypto_instance *crypto_cbc_alloc(void *param, unsigned int len)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;

	alg = crypto_get_attr_alg(param, len, CRYPTO_ALG_TYPE_CIPHER,
				  CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC);
	if (IS_ERR(alg))
		return ERR_PTR(PTR_ERR(alg));

	inst = crypto_alloc_instance("cbc", alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;
	inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_blkcipher_type;

	if (!(alg->cra_blocksize % 4))
		inst->alg.cra_alignmask |= 3;
	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
	inst->alg.cra_blkcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.cra_blkcipher.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.cra_ctxsize = sizeof(struct crypto_cbc_ctx);

	inst->alg.cra_init = crypto_cbc_init_tfm;
	inst->alg.cra_exit = crypto_cbc_exit_tfm;

	inst->alg.cra_blkcipher.setkey = crypto_cbc_setkey;
	inst->alg.cra_blkcipher.encrypt = crypto_cbc_encrypt;
	inst->alg.cra_blkcipher.decrypt = crypto_cbc_decrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}
开发者ID:Voskrese，项目名称:mipsonqemu，代码行数:39，代码来源:cbc.c


示例13: crypto_lookup_aead

struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask)
{
	struct crypto_tfm *tfm;
	int err;

	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	type |= CRYPTO_ALG_TYPE_AEAD;
	mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	mask |= CRYPTO_ALG_TYPE_MASK;

	for (;;) {
		struct crypto_alg *alg;

		alg = crypto_lookup_aead(alg_name, type, mask);
		if (IS_ERR(alg)) {
			err = PTR_ERR(alg);
			goto err;
		}

		tfm = __crypto_alloc_tfm(alg, type, mask);
		if (!IS_ERR(tfm))
			return __crypto_aead_cast(tfm);

		crypto_mod_put(alg);
		err = PTR_ERR(tfm);

err:
		if (err != -EAGAIN)
			break;
		if (signal_pending(current)) {
			err = -EINTR;
			break;
		}
	}

	return ERR_PTR(err);
}
开发者ID:robcore，项目名称:Hulk-Kernel-V2，代码行数:37，代码来源:aead.c


示例14: crypto_get_attr_alg

static struct crypto_instance *cryptd_alloc_blkcipher(
    struct rtattr **tb, struct cryptd_state *state)
{
    struct crypto_instance *inst;
    struct crypto_alg *alg;

    alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_BLKCIPHER,
                  CRYPTO_ALG_TYPE_MASK);
    if (IS_ERR(alg))
        return ERR_CAST(alg);

    inst = cryptd_alloc_instance(alg, state);
    if (IS_ERR(inst))
        goto out_put_alg;

    inst->alg.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
    inst->alg.cra_type = &crypto_ablkcipher_type;

    inst->alg.cra_ablkcipher.ivsize = alg->cra_blkcipher.ivsize;
    inst->alg.cra_ablkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
    inst->alg.cra_ablkcipher.max_keysize = alg->cra_blkcipher.max_keysize;

    inst->alg.cra_ablkcipher.geniv = alg->cra_blkcipher.geniv;

    inst->alg.cra_ctxsize = sizeof(struct cryptd_blkcipher_ctx);

    inst->alg.cra_init = cryptd_blkcipher_init_tfm;
    inst->alg.cra_exit = cryptd_blkcipher_exit_tfm;

    inst->alg.cra_ablkcipher.setkey = cryptd_blkcipher_setkey;
    inst->alg.cra_ablkcipher.encrypt = cryptd_blkcipher_encrypt_enqueue;
    inst->alg.cra_ablkcipher.decrypt = cryptd_blkcipher_decrypt_enqueue;

out_put_alg:
    crypto_mod_put(alg);
    return inst;
}
开发者ID:274914765，项目名称:C，代码行数:37，代码来源:cryptd.c


示例15: crypto_get_attr_alg

static struct crypto_instance *pcrypt_alloc_aead(struct rtattr **tb,
						 u32 type, u32 mask)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;

	alg = crypto_get_attr_alg(tb, type, (mask & CRYPTO_ALG_TYPE_MASK));
	if (IS_ERR(alg))
		return ERR_CAST(alg);

	inst = pcrypt_alloc_instance(alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
	inst->alg.cra_type = &crypto_aead_type;

	inst->alg.cra_aead.ivsize = alg->cra_aead.ivsize;
	inst->alg.cra_aead.geniv = alg->cra_aead.geniv;
	inst->alg.cra_aead.maxauthsize = alg->cra_aead.maxauthsize;

	inst->alg.cra_ctxsize = sizeof(struct pcrypt_aead_ctx);

	inst->alg.cra_init = pcrypt_aead_init_tfm;
	inst->alg.cra_exit = pcrypt_aead_exit_tfm;

	inst->alg.cra_aead.setkey = pcrypt_aead_setkey;
	inst->alg.cra_aead.setauthsize = pcrypt_aead_setauthsize;
	inst->alg.cra_aead.encrypt = pcrypt_aead_encrypt;
	inst->alg.cra_aead.decrypt = pcrypt_aead_decrypt;
	inst->alg.cra_aead.givencrypt = pcrypt_aead_givencrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:36，代码来源:pcrypt.c


示例16: crypto_skcipher_type

struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
						  u32 type, u32 mask)
{
	struct crypto_tfm *tfm;
	int err;

	type = crypto_skcipher_type(type);
	mask = crypto_skcipher_mask(mask);

	for (;;) {
		struct crypto_alg *alg;

		alg = crypto_lookup_skcipher(alg_name, type, mask);
		if (IS_ERR(alg)) {
			err = PTR_ERR(alg);
			goto err;
		}

		tfm = __crypto_alloc_tfm(alg, type, mask);
		if (!IS_ERR(tfm))
			return __crypto_ablkcipher_cast(tfm);

		crypto_mod_put(alg);
		err = PTR_ERR(tfm);

err:
		if (err != -EAGAIN)
			break;
		if (signal_pending(current)) {
			err = -EINTR;
			break;
		}
	}

	return ERR_PTR(err);
}
开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:36，代码来源:ablkcipher.c


示例17: crypto_cbc_create

static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
	struct skcipher_instance *inst;
	struct crypto_attr_type *algt;
	struct crypto_spawn *spawn;
	struct crypto_alg *alg;
	u32 mask;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_SKCIPHER);
	if (err)
		return err;

	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
	if (!inst)
		return -ENOMEM;

	algt = crypto_get_attr_type(tb);
	err = PTR_ERR(algt);
	if (IS_ERR(algt))
		goto err_free_inst;

	mask = CRYPTO_ALG_TYPE_MASK |
		crypto_requires_off(algt->type, algt->mask,
				    CRYPTO_ALG_NEED_FALLBACK);

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER, mask);
	err = PTR_ERR(alg);
	if (IS_ERR(alg))
		goto err_free_inst;

	spawn = skcipher_instance_ctx(inst);
	err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
				CRYPTO_ALG_TYPE_MASK);
	crypto_mod_put(alg);
	if (err)
		goto err_free_inst;

	err = crypto_inst_setname(skcipher_crypto_instance(inst), "cbc", alg);
	if (err)
		goto err_drop_spawn;

	err = -EINVAL;
	if (!is_power_of_2(alg->cra_blocksize))
		goto err_drop_spawn;

	inst->alg.base.cra_priority = alg->cra_priority;
	inst->alg.base.cra_blocksize = alg->cra_blocksize;
	inst->alg.base.cra_alignmask = alg->cra_alignmask;

	inst->alg.ivsize = alg->cra_blocksize;
	inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
	inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;

	inst->alg.base.cra_ctxsize = sizeof(struct crypto_cbc_ctx);

	inst->alg.init = crypto_cbc_init_tfm;
	inst->alg.exit = crypto_cbc_exit_tfm;

	inst->alg.setkey = crypto_cbc_setkey;
	inst->alg.encrypt = crypto_cbc_encrypt;
	inst->alg.decrypt = crypto_cbc_decrypt;

	inst->free = crypto_cbc_free;

	err = skcipher_register_instance(tmpl, inst);
	if (err)
		goto err_drop_spawn;

out:
	return err;

err_drop_spawn:
	crypto_drop_spawn(spawn);
err_free_inst:
	kfree(inst);
	goto out;
}
开发者ID:01org，项目名称:thunderbolt-software-kernel-tree，代码行数:78，代码来源:cbc.c


示例18: crypto_givcipher_default

static int crypto_givcipher_default(struct crypto_alg *alg, u32 type, u32 mask)
{
	struct rtattr *tb[3];
	struct {
		struct rtattr attr;
		struct crypto_attr_type data;
	} ptype;
	struct {
		struct rtattr attr;
		struct crypto_attr_alg data;
	} palg;
	struct crypto_template *tmpl;
	struct crypto_instance *inst;
	struct crypto_alg *larval;
	const char *geniv;
	int err;

	larval = crypto_larval_lookup(alg->cra_driver_name,
				      CRYPTO_ALG_TYPE_GIVCIPHER,
				      CRYPTO_ALG_TYPE_MASK);
	err = PTR_ERR(larval);
	if (IS_ERR(larval))
		goto out;

	err = -EAGAIN;
	if (!crypto_is_larval(larval))
		goto drop_larval;

	ptype.attr.rta_len = sizeof(ptype);
	ptype.attr.rta_type = CRYPTOA_TYPE;
	ptype.data.type = type | CRYPTO_ALG_GENIV;
	/* GENIV tells the template that we're making a default geniv. */
	ptype.data.mask = mask | CRYPTO_ALG_GENIV;
	tb[0] = &ptype.attr;

	palg.attr.rta_len = sizeof(palg);
	palg.attr.rta_type = CRYPTOA_ALG;
	/* Must use the exact name to locate ourselves. */
	memcpy(palg.data.name, alg->cra_driver_name, CRYPTO_MAX_ALG_NAME);
	tb[1] = &palg.attr;

	tb[2] = NULL;

	if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	    CRYPTO_ALG_TYPE_BLKCIPHER)
		geniv = alg->cra_blkcipher.geniv;
	else
		geniv = alg->cra_ablkcipher.geniv;

	if (!geniv)
		geniv = crypto_default_geniv(alg);

	tmpl = crypto_lookup_template(geniv);
	err = -ENOENT;
	if (!tmpl)
		goto kill_larval;

	inst = tmpl->alloc(tb);
	err = PTR_ERR(inst);
	if (IS_ERR(inst))
		goto put_tmpl;

	if ((err = crypto_register_instance(tmpl, inst))) {
		tmpl->free(inst);
		goto put_tmpl;
	}

	/* Redo the lookup to use the instance we just registered. */
	err = -EAGAIN;

put_tmpl:
	crypto_tmpl_put(tmpl);
kill_larval:
	crypto_larval_kill(larval);
drop_larval:
	crypto_mod_put(larval);
out:
	crypto_mod_put(alg);
	return err;
}
开发者ID:johnny，项目名称:CobraDroidBeta，代码行数:80，代码来源:ablkcipher.c


示例19: crypt


//.........这里部分代码省略.........

	blkcipher_walk_init(&w, dst, src, nbytes);
	return crypt(desc, &w, ctx,
		     crypto_cipher_alg(ctx->child)->cia_encrypt);
}

static int decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		   struct scatterlist *src, unsigned int nbytes)
{
	struct priv *ctx = crypto_blkcipher_ctx(desc->tfm);
	struct blkcipher_walk w;

	blkcipher_walk_init(&w, dst, src, nbytes);
	return crypt(desc, &w, ctx,
		     crypto_cipher_alg(ctx->child)->cia_decrypt);
}

static int init_tfm(struct crypto_tfm *tfm)
{
	struct crypto_cipher *cipher;
	struct crypto_instance *inst = (void *)tfm->__crt_alg;
	struct crypto_spawn *spawn = crypto_instance_ctx(inst);
	struct priv *ctx = crypto_tfm_ctx(tfm);
	u32 *flags = &tfm->crt_flags;

	cipher = crypto_spawn_cipher(spawn);
	if (IS_ERR(cipher))
		return PTR_ERR(cipher);

	if (crypto_cipher_blocksize(cipher) != 16) {
		*flags |= CRYPTO_TFM_RES_BAD_BLOCK_LEN;
		return -EINVAL;
	}

	ctx->child = cipher;
	return 0;
}

static void exit_tfm(struct crypto_tfm *tfm)
{
	struct priv *ctx = crypto_tfm_ctx(tfm);
	if (ctx->table)
		gf128mul_free_64k(ctx->table);
	crypto_free_cipher(ctx->child);
}

static struct crypto_instance *alloc(struct rtattr **tb)
{
	struct crypto_instance *inst;
	struct crypto_alg *alg;
	int err;

	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
	if (err)
		return ERR_PTR(err);

	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
				  CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(alg))
		return ERR_CAST(alg);

	inst = crypto_alloc_instance("lrw", alg);
	if (IS_ERR(inst))
		goto out_put_alg;

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER;
	inst->alg.cra_priority = alg->cra_priority;
	inst->alg.cra_blocksize = alg->cra_blocksize;

	if (alg->cra_alignmask < 7) inst->alg.cra_alignmask = 7;
	else inst->alg.cra_alignmask = alg->cra_alignmask;
	inst->alg.cra_type = &crypto_blkcipher_type;

	if (!(alg->cra_blocksize % 4))
		inst->alg.cra_alignmask |= 3;
	inst->alg.cra_blkcipher.ivsize = alg->cra_blocksize;
	inst->alg.cra_blkcipher.min_keysize =
		alg->cra_cipher.cia_min_keysize + alg->cra_blocksize;
	inst->alg.cra_blkcipher.max_keysize =
		alg->cra_cipher.cia_max_keysize + alg->cra_blocksize;

	inst->alg.cra_ctxsize = sizeof(struct priv);

	inst->alg.cra_init = init_tfm;
	inst->alg.cra_exit = exit_tfm;

	inst->alg.cra_blkcipher.setkey = setkey;
	inst->alg.cra_blkcipher.encrypt = encrypt;
	inst->alg.cra_blkcipher.decrypt = decrypt;

out_put_alg:
	crypto_mod_put(alg);
	return inst;
}

static void free(struct crypto_instance *inst)
{
	crypto_drop_spawn(crypto_instance_ctx(inst));
	kfree(inst);
}
开发者ID:E-LLP，项目名称:n900，代码行数:101，代码来源:lrw.c


示例20: crypto_get_attr_type

static struct crypto_instance *crypto_ccm_alloc_common(struct rtattr **tb,
						       const char *full_name,
						       const char *ctr_name,
						       const char *cipher_name)
{
	struct crypto_attr_type *algt;
	struct crypto_instance *inst;
	struct crypto_alg *ctr;
	struct crypto_alg *cipher;
	struct ccm_instance_ctx *ictx;
	int err;

	algt = crypto_get_attr_type(tb);
	if (IS_ERR(algt))
		return ERR_CAST(algt);

	if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
		return ERR_PTR(-EINVAL);

	cipher = crypto_alg_mod_lookup(cipher_name,  CRYPTO_ALG_TYPE_CIPHER,
				       CRYPTO_ALG_TYPE_MASK);
	if (IS_ERR(cipher))
		return ERR_CAST(cipher);

	err = -EINVAL;
	if (cipher->cra_blocksize != 16)
		goto out_put_cipher;

	inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
	err = -ENOMEM;
	if (!inst)
		goto out_put_cipher;

	ictx = crypto_instance_ctx(inst);

	err = crypto_init_spawn(&ictx->cipher, cipher, inst,
				CRYPTO_ALG_TYPE_MASK);
	if (err)
		goto err_free_inst;

	crypto_set_skcipher_spawn(&ictx->ctr, inst);
	err = crypto_grab_skcipher(&ictx->ctr, ctr_name, 0,
				   crypto_requires_sync(algt->type,
							algt->mask));
	if (err)
		goto err_drop_cipher;

	ctr = crypto_skcipher_spawn_alg(&ictx->ctr);

	/* Not a stream cipher? */
	err = -EINVAL;
	if (ctr->cra_blocksize != 1)
		goto err_drop_ctr;

	/* We want the real thing! */
	if (ctr->cra_ablkcipher.ivsize != 16)
		goto err_drop_ctr;

	err = -ENAMETOOLONG;
	if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
		     "ccm_base(%s,%s)", ctr->cra_driver_name,
		     cipher->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
		goto err_drop_ctr;

	memcpy(inst->alg.cra_name, full_name, CRYPTO_MAX_ALG_NAME);

	inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD;
	inst->alg.cra_flags |= ctr->cra_flags & CRYPTO_ALG_ASYNC;
	inst->alg.cra_priority = cipher->cra_priority + ctr->cra_priority;
	inst->alg.cra_blocksize = 1;
	inst->alg.cra_alignmask = cipher->cra_alignmask | ctr->cra_alignmask |
				  (__alignof__(u32) - 1);
	inst->alg.cra_type = &crypto_aead_type;
	inst->alg.cra_aead.ivsize = 16;
	inst->alg.cra_aead.maxauthsize = 16;
	inst->alg.cra_ctxsize = sizeof(struct crypto_ccm_ctx);
	inst->alg.cra_init = crypto_ccm_init_tfm;
	inst->alg.cra_exit = crypto_ccm_exit_tfm;
	inst->alg.cra_aead.setkey = crypto_ccm_setkey;
	inst->alg.cra_aead.setauthsize = crypto_ccm_setauthsize;
	inst->alg.cra_aead.encrypt = crypto_ccm_encrypt;
	inst->alg.cra_aead.decrypt = crypto_ccm_decrypt;

out:
	crypto_mod_put(cipher);
	return inst;

err_drop_ctr:
	crypto_drop_skcipher(&ictx->ctr);
err_drop_cipher:
	crypto_drop_spawn(&ictx->cipher);
err_free_inst:
	kfree(inst);
out_put_cipher:
	inst = ERR_PTR(err);
	goto out;
}
开发者ID:Kanel，项目名称:CloudMAC-VAP-Driver，代码行数:97，代码来源:crypto-ccm.c



注：本文中的crypto_mod_put函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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